Michael Baker Jr. Inc., an engineering unit of Michael Baker Corp. (which has operations in Philadelphia and Horsham), will provide construction inspection and documentation services for three major projects in Lackawanna and Luzerne Counties in Northeastern Pennsylvania.

The Harrisburg-based firm says the four-year contract is worth about $2.8 million.

The working involves replacement of the Eighth Street Bridge over the Susquehanna River north of Wilkes-Barre, rehabilitation of several bridges on Interstate 81 between Wilkes-Barre and Scranton, and construction of a new roadway to the Valley View Business Park in Scranton.

The total construction value of the projects exceeds $47 million.